Solution

Propellerheads confirmed the issue and released a Rewire component version to us (as of writing: version 1.8.7.145) that fixes the error.This new component will be part of our next maintenance updates and it will most likely be available from Propellerheads separately soon as well.

Please note that this is the only reason for the message on start-up! We do not need access to your contacts and have no intention to do so in the future.